Spread Windows Forms 12.0 Product Documentation
ActiveSheetChanging Event

FarPoint.Win.Spread Assembly > FarPoint.Win.Spread Namespace > FpSpread Class : ActiveSheetChanging Event
Occurs when the user changes the active sheet.
Public Event ActiveSheetChanging As ActiveSheetChangingEventHandler
Dim instance As FpSpread
Dim handler As ActiveSheetChangingEventHandler
AddHandler instance.ActiveSheetChanging, handler
public event ActiveSheetChangingEventHandler ActiveSheetChanging
Event Data

The event handler receives an argument of type ActiveSheetChangingEventArgs containing data related to this event. The following ActiveSheetChangingEventArgs properties provide information specific to this event.

Gets or sets the index of the new active sheet.  
Gets or sets whether to cancel the active sheet change.  

This event is raised by the OnActiveSheetChanging method when the user is changing the active sheet.

For more details on the individual event arguments, refer to ActiveSheetChangingEventArgs members.

This example raises the ActiveSheetChanging event when the user clicks on another sheet.
fpSpread1.Sheets.Count = 3;
fpSpread1.TabStripPolicy = FarPoint.Win.Spread.TabStripPolicy.Always;

private void fpSpread1_ActiveSheetChanged(object sender, System.EventArgs e)
     ListBox1.Items.Add("Active Sheet Changing.");
FpSpread1.Sheets.Count = 3
FpSpread1.TabStripPolicy = FarPoint.Win.Spread.TabStripPolicy.Always

Private Sub FpSpread1_ActiveSheetChanging(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.ActiveSheetChangingEventArgs)
Handles FpSpread1.ActiveSheetChanging
     ListBox1.Items.Add("Active Sheet Changing.")
End Sub
See Also